Fire-extinguisher safety holder



Sept. 3, 1929. R. w. MCMULLEN 1,727,213

' 'FIRE EXTINGUISHER SAFETY HOLDER Filed Dec. 12, 1927 3 Sheets-Sheet 1 1| I 4 la I I INVEN TOR.

ATTORNEY.

Sept. 3, 1929.

R. W. MCMULLEN FIRE EXTINGUISHER SAFETY HOLDER Filed Dec. l2, 1927 3 Sheets-Sheet 2 A TTORNEY.

Sept. 3, 1929. R. w. MCMULLN 1,727,213

FIRE EXTINGUISHER SAFETY HOLDER Filed Deo. 12, 1927 5 Sheets-Sheet 3 INVENTOR.

VMM/ffm B 2% w ATTORNEY.

Patented Sept. 3, 1929.

STATES .RALPH W1 MCMULLEN, OF DETROIT, MICHIGAN.

FIRE-EXTINGUISHER SAFETY HOLDER.

Application filed December 12, 1927.

The object of my invention is to provide a safety holder frame for a special type of fire extinguisher, more specifically set forth in my former application, Serial No. 114,923, that will prevent tampering with the extinguisher in any manner while the same 1s Within the supporting frame.

Another object is to produce a safety supporting frame for a special fire extinguisher that is provided with a sealing lock which will operate in such a manner as to indicate any tampering with an enclosed lire ext1nguisher, yet Will not prevent its easy removal from the frame itself.

A still further object is to produce a safcty fire extinguisher holder that. will conceal the outlet port in a manner to prevent any object being inserted therein.

A still further object is to produce a safety lire extinguisher holder adapted for retaining any type of hand extinguisher and providing a suitable sealing and locking device therefor.

Another object is to produce a iire extinguisher safety holder comprising means f or preventing the fire extinguisher when 1nserted therein from being retained or turned Within the supporting frame.

"These several objects are obtained in a pre ferred form by Ithe construction and arrangement of parts more fully hereafter set forth.

Similar parts on all drawings are marked by similar numerals.

Fig. l is a front View of the safety holder with a lire extinguisher placed therein, and shows the special lock-ing and sealing means for preventing tampering with the extinguisher.

Fig. 2 is a side view of the holder and extinguisher shown in Fig. l, showing the real position of the safety holder as applied to the operating members of the fire extinguisher.

Fig. 3 is a front view of my safety holder frame showing the general construction of same and locking members mounted thereon.

Fig. 4 is a side View of the same frame showing the relative position of the operating f art. p Fig. 5 is a cross-sectional view taken on line 5-5 of Fig. 2, showing the means of attaching and sealing the operating members of the fire extinguisher.

Fig. 6 is a sectional view taken on line (5-6 of Fig. 3, showing the recessed cup attached at the lower end of the safety holder, and the Serial N0. 239,395.

means for holding 'the fire extinguisher in a fixed, predetermined position.

h Fig. 7 illustrates the special type V'of operating trigger mounted on the top of the fire extinguisher heretofore referred to in a former application.

I will now describe more fully the detailed construction of my safety device, referring to the drawings and the marks thereon.

My invention will best be 'understood when described in combination with the 'operating members of the fire Vexti-n u'isher itself, .as the lookin g device is especi'alf yadapte'd to this type of extinguisher although it maybe modiiied and applied to other similar types of extinguishcrs.

The type of fire `extinguisher readily adapted to the special feature of my invention is illustrated in Fig. 2 of the vdrawings,comprising Va kmetal liquid pressure tank -1- formed preferably of cylindrical shaped body and sealed with the end heads Qrand -3. A plunger pump 4 is mounted Within the tank -1 vand extended `thru the tank head *2 and is provided with an operating handle -5- mounted on the 'outer en'd'of a pump plunger rod -6- designed to operate and raise the pressure within the tank -1- When the tank is partially filled with liquid. lThe extinguisher is provided with a discharge nozzle -7- mounted within the opposite head end 3- and is connected to 'and regulated by an operating valve 8- which is mounted within the head of the tank and is controlled by an operating trigger -9- placed in a convenient position near the handle -5- and ope-rates in a manner that when the pressure is pumped 'up- Within the tank -lpartially filled with liquid and the operating valve -8- is opened by the movement Vof the trigger -'9- the chemical liquid within the tank will be discharged thru the nozzle 47- Vvand the 'extinguisher exhausted, if the valve -8- remains open. It is the purpose of my special safety holder 1to prevent anyone tampering lwith the 'lire Aextinguisher when not in use, or unnecessarily exhausting the extinguisher, or lmaking it otherwise useless,A and to indicate same should the extinguisher be removed from 'the safety holder or molested or tampered with in `any manner. My special safety hol-der comprises a frame standard `bar l0- preferably made of sheet metal bar and 'of a length 'slightly greater than the length of the extinguisher tank to which it is applied. Both the top and the bottom ends -11- and -12- of the standard bar are bent to approximately right angles to the bar, and with a suicient opening between the ends to admit the extinguisher tank -1- and connecting fittings. The standard bar -10- is provided with screw holes -13- thru the center Section of the bar as a convenient means for fixedly attaching the same to permanent supports Wherever desired to store the extinguisher, when not in use. Mounted at the bottom end of the standard bar l0- is a cup socket -14-, fixedly attached to the bar end 12- by the rivets -15-, and also preferably made of sheet metal, of a size and shape to receive the discharge nozzle end head -3- of the fire extinguisher tank, and retain the same therein, completely closing the fire extinguisher discharge nozzle -7- and preventing any tampering therewith. The cup socket 14- is formed with sufficiently deep side walls afto prevent the removal of the tank -1- therefrom. Across the bottom -b of the cup socket w-14- is formed a ridged member -l6- preferably positioned at right angles to the frame end -12-. The ridge -16- is designed to fit and engage a recessed socket groove -17- formed within the head end 3m of the extinguisher tank 1, for preventing the tank from being turned or moved when once inserted within the safety holder. At the top end of the standard bar -10- is mounted a spring band collar -18- fixedly attached thereto by rivets -19-. The spring collar band 1S- is so designed to partially enclose the tank head end 2 when pressed therein and clamped thereon suiiciently to retain the extinguisher with reasonable stability, yet allow it to be withdrawn without applying excessive force. The extinguisher tank 1- being placed therein by merely inserting the tank -1 within the cup recess M and placing the tank head 2fwithin the open ends of the spring collar -18-. The collar band 18 is positioned on the standard bar -10- to extend slightly above the top surface of the tank head -2- and carries a sealed bar -2'0- pivotally attached to the outer end -dcapable of swinging sidewise to admit the tank head -2- within the collar band opening. In placing the extinguisher within the holder the pump handle -5- must be back to the frame, directly in line with the standard bar l0- and the operating trigger -9 positioned at the front side, approximately at about the center of the open collar band ends dand The pivoted sealing bar 20- is positioned and designed to swing over the top surface of the tank end -2- and adjacent thereto and also to fit and engage a notch -21- formed at the end of trigger -9-, when its opposite end -his positioned near end -fof the Spring col.-

lar band -18- to form a seal for the bar both ends -jand -L- are bent outward as shown in Fig. 5 and are connected by a narrow strip of paper -22- wound and glued thereon and of sufficient strength to firmly hold the sealing bar -20- within the trigger notch -21- making it impossible to tamper with the extinguisher, either by removing same from the holder, or pulling the trigger without breaking the paper seal -22, yet by the use of a paper seal lock which will easily tear, the fire extinguisher is always available in case of necessity and can be easily and quickly removed from the safety frame by simply pulling outwardly on the tank -1-, but if tampered with at any time, it will be revealed by the broken paper seal 2Q- The top end -11- of the standard bar -10- is formed with a slotted recess -23-- therein sufficient to admit the pump handle 5 and engage the shoulders 26- formed on the pump handle stem which also prevents the extinguisher pressure pump -4 from being operated in any manner, while within the safety frame and in case the pump handle is flattened, as illustrated in Figs. 1 and 2, it will prevent rotation of the pump handle and pump rod itself.

Having fully described my fire extinguisher safety holder, what I claim as my invention and desire to secure by Letters Patent:

l. A safety device adapted for holding a portable fire extinguisher therein, comprising a metal supporting frame having means for fixedly mounting the same on any suitable supports, a socket cup fixedly mounted at the bottom of the said frame for receiving the end of the fire extinguisher tank therein, said socket cup being formed with a ridged member across the bottom face thereof for engaging with a corresponding recess in the fire extinguisher tank, a circular spring collar fixedly mounted at the top end of the said frame, positioned to engage the top end of the fire extinguisher tank when placed therein, a sealing bar pivotally attached to one outer end of the said spring collar, said sealing bar positioned to engage a notched recess in the operating member of the fire extinguisher and a paper seal mounted on the free end of the said sealing bar and fixedly attached to the opposite end of the spring collar, in a manner for sealing and holding the said sealing bar in a fixed position across the tire extinguisher operating member.

2. A safety device adapted for receiving and retaining a portable fire extinguisher therein comprising a metal frame having suitable means for fixedly attaching said frame to any desired supports, a socket cup xedly mounted on the lower end of the said frame, said socket cup being formed with a perimeter rim and also having a ridged member formed across the base section thereof for fitting and engaging a corresponding depression at the bottom of the fire extinguisher tank, a slotted arm member formed to receive and retain a movable pump member of the fire extinguisher therein at the top end of said frame member, so designed as to prevent any movement of the extinguisher pump handle, a spring collar fixedly attached to the top end of the said frame and positioned thereon to engage the top end of the fire extinguisher tank and firmly retain the said lire extinguisher therein, the said spring being of a length to partially enclose the tank head, a sealing bar pivotally attached to one end of the said spring collar positioned therein to fit and engage a notched recess in the operating trigger of an enclosed lire extinguisher, the opposite end of the said sealing bar positioned adjacent the opposite end of the spring collar and connected thereto by means of a glued paper sealing strip, the ends of said spring collar and sealing bar, both bein formed to prevent the removal of the glue sealing strip Without tearing of the paper.

3. A safety device adapted for receiving and retaining a portable tank irc extinguisher therein, comprisin a metal frame having suitable means for lgixedly attaching the same to any desired support and end support section xedly mounted on the lower end of the said frame suitable for receiving and retaining the discharge end of a fire extinguisher tank therein, means mounted Within said support for preventing the turning of the extinguisher When inserted therein, said support frame being extended at the top end thereof and bent at right angles to the frame stand, said top bend end being slotted for receiving and retaining the sliding operating member of the lire extinguisher for preventing any movement thereof, a semi collar bend section xedly mounted near the top of the said frame positioned thereon to receive and engage the top end of the fire extinguisher tank, and firmly hold said tank Within the safety frame, a sealing bar mounted across the open ends of the semi collar band section and attached thereto in a manner for holding the said sealing band Within the notched recess of the fire extinguisher operating trigger and at least one end of the said sealing bar connected to the collar band ends by a paper seal securely attached thereto and provided With means to prevent the removal of the paper seal when once attached except by tearing.

In Witness whereof, I sign this specification.

RALPH W. MCMULLEN. 

